Published 12.05.2018 on subject Mathematics by Guest

Janine inflated 1 ball to a radius of 18 cm and another ball to a radius of 12 cm. How much more air was in the larger ball? Use 3.14 to approximate pi and express your answer in hundredths.

Answered by Guest

We know, volume of a sphere = 4/3 πr³
Difference in Volume = 4/3 πr₁³ - 4/3 πr₂³
= 4/3 π (r₁² - r₂²)
= 4/3 * 3.14 (18² - 12²)
= 4.187 (324 - 144)
= 4.187 (180)
= 753.66 cm³

In short, Your Answer would be 753.66 cm³

Hope this helps!